This example draws a simple cartoon face using SVG elements created with D3.js. It shows a yellow circle as the head, two red circles for eyes, and an arc-based path for the mouth, all positioned relative to the SVG’s center. The code uses D3’s `select` to target an SVG element, `arc` to generate the mouth shape, and `.attr` methods to set coordinates and radii. The styling is applied directly via `.style`, with the face centered using a translation transform.